Also known as a "cold start" valve, this integral component releases air off of the piston and pump head after it shuts off, which allows the motor to start much more easily and efficiently. This also reduces overheating issues. 

Rubber O-Ring Gasket for the cylinder head. Replace this gasket if you have to remove the cylinder head.

If your unit has a hard time restarting when trying to cycle, order this. If your pressure switch is leaking out of the small bleeder valve on the side (or located underneath), order this valve. Check Valve 2HP Click here for instructions on adjusting...